Rzeczownik z ang. na O
- Orange
- Owl
- Oil
- Octopus
- Onion
- Oak
- Oven
- Open
- office
- object
- Olive
- Ostrich
- one
- Ocean
- Order
- Orgasm
- October
- Oat
- oval
- Oyster
- Old
- Opera
- Out
- Okay
- Owen
- only
- Over
- Ornament
- Orphan
- Oracle
- Okey
- Other
- Opening
- Owner
- Opium
- Opportunity
- Orangutan
- Opener
- Oman
- Oatmeal
- Oxygen
- Outlet
- Orc
- Otter
- organ
- Oral
- Oats
- Orca
- Online
- officer
- Our
- Oscar
- Opal
- Older
- Organization
- Oreo
- Orchestra
- olives
- own
- Outside
- ore
- operator
- Ogre
- offer
- Odd
- Obvious
- Orb
- orange juice
- Option
- opposite
- Operation
- Olivia
- olive oil
- Okno
- Ohio
- obstacle
- o'block
- Oak wood
- Overthinking
- organism
- Ordinary
- Omlet
- oh my god
- ocular
The words in the list Rzeczownik z ang. na O come from players of the word game Categories game.